* Add ipkg for future development

[oweals/opkg-lede.git] / libbb / xfuncs.c

diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
new file mode 100644 (file)
index 0000000..ee90e60
--- /dev/null
+++ b/libbb/xfuncs.c
@@ -0,0 +1,102 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "libbb.h"
+
+
+#ifndef DMALLOC
+extern void *xmalloc(size_t size)
+{
+       void *ptr = malloc(size);
+       if (ptr == NULL && size != 0)
+               error_msg_and_die(memory_exhausted);
+       return ptr;
+}
+
+extern void *xrealloc(void *ptr, size_t size)
+{
+       ptr = realloc(ptr, size);
+       if (ptr == NULL && size != 0)
+               error_msg_and_die(memory_exhausted);
+       return ptr;
+}
+
+extern void *xcalloc(size_t nmemb, size_t size)
+{
+       void *ptr = calloc(nmemb, size);
+       if (ptr == NULL && nmemb != 0 && size != 0)
+               error_msg_and_die(memory_exhausted);
+       return ptr;
+}
+
+extern char * xstrdup (const char *s) {
+       char *t;
+
+       if (s == NULL)
+               return NULL;
+
+       t = strdup (s);
+
+       if (t == NULL)
+               error_msg_and_die(memory_exhausted);
+
+       return t;
+}
+#endif
+
+extern char * xstrndup (const char *s, int n) {
+       char *t;
+
+       if (s == NULL)
+               error_msg_and_die("xstrndup bug");
+
+       t = xmalloc(++n);
+       
+       return safe_strncpy(t,s,n);
+}
+
+FILE *xfopen(const char *path, const char *mode)
+{
+       FILE *fp;
+       if ((fp = fopen(path, mode)) == NULL)
+               perror_msg_and_die("%s", path);
+       return fp;
+}
+
+/* Stupid gcc always includes its own builtin strlen()... */
+#undef strlen
+size_t xstrlen(const char *string)
+{
+       return(strlen(string));
+}
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/